>>> new and improved? the pharmaceutical industry in america is constantly researching and innovating. this makes it possible for the industry to market new medicine, all the time. but new is not necessarily improved. so says a brand new study funded by the british government. the study found that older, cheaper, generic drugs were treating mental illness were better across-the-board than newly marketed medications. when it comes to prescription drugs, how can you tell when new really means improved? we'll ask dr. sharon levine. >>> new study i referred doctor sharon levine, from san francisco, associated executive director of kaiser permanenty. that new study refers to schizophrenia and the new drug it was found is better than the existing drug, right? >> yes, that's right this. is a very important studdy and it demonstrated in a larg population that the older antipsychotic drug, heldol, was more affective than the newer category called a typical antipsychotics. and it really speaks to the fact that we have a buys, all of us, consumers, physicians, we assume that new m